oven.cpp

#include <benri/si/temperature.h>
#include <iostream>

void set_oven(benri::quantity_point<benri::si::temperature::celsius_t> temperature)
{
    std::wcout << "Oven was set to " << temperature.value() << L"°C.\n";
};
auto temperature_update()
{
    using namespace benri::si::temperature;

    // Increase temperature by 10°C.
    return 10_celsius;
}
auto new_temperature()
{
    using namespace benri::si::temperature;

    // Set temperature to 210°C.
    return 210_degree_celsius;
}
int main()
{
    using namespace benri::si::temperature;

    // we can do the following:
    set_oven(200_degree_celsius); // Sets the temperature to 200°C.
    // set_oven(250_celsius);        //Will not compile because we have no zero
    // point.
    set_oven(zero_point(celsius) + 250_celsius); // Works fine.

    // we can be safe from the following:
    // set_oven(temperature_update()); //Will not compile. (Otherwise the oven
    // would now be at 10°C.)
    set_oven(new_temperature()); // Will compile, and set the temperature to
                                 // 210°C.
}